Clean Water Act discharge permit · NPDES MSP092171
WALKER HILL ENVIRONMENTAL INC, Foxworth, MS: NPDES MSP092171 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
WALKER HILL ENVIRONMENTAL INC holds NPDES permit MSP092171, which discharges to Ms0043656 - City Of Foxworth Potw. EPA’s file records it issued October 9, 2019 and expiring September 30, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | WALKER HILL ENVIRONMENTAL INC |
|---|---|
| Permittee as filed | WALKER HILL ENVIRONMENTAL INC |
| NPDES ID | MSP092171 |
| Permit status | Effective |
| Permit type | Individual industrial user permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 9, 2019 |
| Expiration date | September 30, 2024 |
| Issuing agency | MDEQ |
| Address | Foxworth, MS 39483 |
| Receiving water | MS0043656 - CITY OF FOXWORTH POTW |
| NAICS | 447110 – Gasoline Stations with Convenience Stores |
| SIC | 5541 – Gasoline Service Stations |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 8With a violation of any kind
- 4With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Benzene, ethylbenzene, toluene, xylene combination | 2 | 30 | 24 | May 31, 2026 | 242% over the limit |
| Benzene | 2 | 24 | 18 | February 28, 2026 | 1,980% over the limit |
| p-Cresol | 2 | 22 | 14 | June 30, 2024 | 276% over the limit |
| o-Cresol | 2 | 1 | 1 | December 31, 2016 | 30% over the limit |
| pH | 2 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| Hydrocarbons, petroleum | 1 | 5 | 0 | ||
| Naphthalene | 1 | 4 | 0 | ||
| 2,4,6-Trichlorophenol | 2 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MSP092171.
Inspections
EPA’s inspection file holds no inspection for NPDES MSP092171.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| August 19, 2026 | Letter of Violation/ Warning Letter | State |
| June 5, 2026 | Letter of Violation/ Warning Letter | State |
| March 19, 2026 | Letter of Violation/ Warning Letter | State |
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MSP092171.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MSP092171 there.
WALKER HILL ENVIRONMENTAL INC, Foxworth, Mississippi: Individual industrial user permit MSP092171; Effective; issued October 9, 2019, term to September 30, 2024, by MDEQ; discharges to MS0043656 - CITY OF FOXWORTH POTW; Gasoline Stations with Convenience Stores.
1 of the 9 pollutants listed for NPDES MSP092171 have no violation or effluent exceedance.
- Benzene, ethylbenzene, toluene, xylene combination: 2 limits, 30 violations of any kind, 24 effluent exceedances, latest May 31, 2026, largest 242% over the limit.
- Benzene: 2 limits, 24 violations of any kind, 18 effluent exceedances, latest February 28, 2026, largest 1,980% over the limit.
- p-Cresol: 2 limits, 22 violations of any kind, 14 effluent exceedances, latest June 30, 2024, largest 276% over the limit.
- o-Cresol: 2 limits, 1 violation of any kind, 1 effluent exceedance, latest December 31, 2016, largest 30% over the limit.
- pH: 2 limits, 6 violations of any kind.
- Flow, in conduit or thru treatment plant: 2 limits, 6 violations of any kind.
- Hydrocarbons, petroleum: 1 limit, 5 violations of any kind.
- Naphthalene: 1 limit, 4 violations of any kind.
- 2,4,6-Trichlorophenol: 2 limits.
- August 19, 2026: Letter of Violation/ Warning Letter (State).
- June 5, 2026: Letter of Violation/ Warning Letter (State).
- March 19, 2026: Letter of Violation/ Warning Letter (State).
WALKER HILL ENVIRONMENTAL INC among its neighbors
Its county: 27, 1 major; MSP092171 is minor permit.
Other permits in the county
- COLUMBIA POTW, NORTH, Columbia: MS0020222, minor, term to 2026-08-31
- COLUMBIA POTW, SOUTH, Columbia: MS0044164, major, term to 2024-08-31
- COLUMBIA POTW, SOUTH, Columbia: MSL044164, minor, term to 2025-12-31
- COLUMBIA, CITY OF, MISSISSIPPI, R.A. JOHNSON SPORTS COMPLEX, Columbia: MSR108521, minor, term to 2027-01-31
- COXS TRIANGLE BP, Foxworth: MSG120288, minor, term to 2027-03-31
- CROWN HEALTH CARE LAUNDRY LLC, Columbia: MSP092312, minor, term to 2022-12-31
- FORTENBERRY FAMILY FARMS LLC, Foxworth: MSR109446, minor, term to 2027-01-31
- FORTENBERRY FAMILY FARMS LLC, FARM 2, Foxworth: MSR109570, minor, term to 2027-01-31
- FOXWORTH POTW, Foxworth: MS0043656, minor, term to 2022-08-31
- GEORGIA PACIFIC WOOD PRODUCTS LLC, COLUMBIA, Columbia: MS0002208, minor, term to 2011-07-31
Nearby on the register
- Discharge permits in Foxworth
- Every permit record in Foxworth, A to Z
- Discharge permits in Mississippi
- Every permit record in Mississippi, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.
What this page shows
This public-records page covers NPDES permit MSP092171, held by WALKER HILL ENVIRONMENTAL INC of Foxworth, MS, which discharges to MS0043656 - CITY OF FOXWORTH POTW and is listed as an individual industrial user permit with a minor discharger class and an Effective status. The permit file shows 9 pollutants on file, 8 of them under a numeric limit, and 4 pollutants with an effluent exceedance.